import Vue from 'vue'
import Router from 'vue-router'
import store from '../store'
Vue.use(Router)

/* Layout */
import Layout from '@/layout'


/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [{
      path: 'dashboard',
      name: 'Dashboard',
      component: () => import('@/views/dashboard/index'),
      meta: { title: '首页', icon: 'dashboard' }
    }]
  },


  // 404 page must be placed at the end !!!
  
]

export const asyncRouters=[
  {
    path: '/product',
    component: Layout,
    name: 'Product',
    meta: { title: '商品管理',icon: 'el-icon-goods'},
    children: [{
      path: 'attr',
      name: 'Attr',
      component: () => import('../views/product/Attr/attr'),
      meta: { title: '平台属性管理'}
    },
    {
      path: 'sku',
      name: 'Sku',
      component: () => import('../views/product/Sku/sku'),
      meta: { title: 'Sku管理'}
    },
    {
      path: 'spu',
      name: 'Spu',
      component: () => import('../views/product/Spu/spu'),
      meta: { title: 'Spu管理'}
    },
    {
      path: 'trademark',
      name: 'Trademark',
      component: () => import('../views/product/tradeMark/trade'),
      meta: { title: '品牌管理'}
    },

  ]
  },
  {
    name: 'Acl',
    path: '/acl',
    component: Layout,
    redirect: '/acl/user/list',
    meta: {
      title: '权限管理',
      icon: 'el-icon-lock'
    },
    children: [
      {
        name: 'User',
        path: 'user/list',
        component: () => import('@/views/acl/user/list'),
        meta: {
          title: '用户管理',
        },
      },
      {
        name: 'Role',
        path: 'role/list',
        component: () => import('@/views/acl/role/list'),
        meta: {
          title: '角色管理',
        },
      },
      {
        name: 'RoleAuth',
        path: 'role/auth/:id',
        component: () => import('@/views/acl/role/roleAuth'),
        meta: {
          activeMenu: '/acl/role/list',
          title: '角色授权',
        },
        // hidden: true,
      },
      {
        name: 'Permission',
        path: 'permission/list',
        component: () => import('@/views/acl/permission/list'),
        meta: {
          title: '菜单管理',
        },
      },
    ]
  },
]

export const anyRouters={ path: '*', redirect: '/404', hidden: true }

const createRouter = () => new Router({
  // mode: 'history', // require service support
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRoutes
})

const router = createRouter()
router.beforeEach(async(to, from, next) => {
  const hasToken = store.state.user.token
  if (hasToken) {
    if (to.path === '/login') {
      next()
    } else {
      const hasGetUserInfo = store.state.user.name
      if (hasGetUserInfo) {
        next()
      } else {
        try {
          // get user info
          await store.dispatch('user/getInfo')
          // hack方法 确保addRoutes已完成,注意要添加 replace: true
          // 其实在路由守卫中，只有next()是放行，其他的诸如：next('/logon') 、 next(to) 或者 next({ ...to, replace: true })都不是放行，
          // 而是：中断当前导航，执行新的导航
          // next({ ...to, replace: true })中的replace: true只是一个设置信息，告诉VUE本次操作后，不能通过浏览器后退按钮，返回前一个路由。
          next({ ...to, replace: true })
          // next()
        } catch (error) {
          await store.dispatch('user/resetToken')
          next(`/login?redirect=${to.path}`)
        }
      }
    }
  } else {
    if (to.path=='/login') {
      next()
    } else {
      next(`/login?redirect=${to.path}`)
    }
  }
})




// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}




export default router
